Active return
What is Active return?
Active return is the difference between a portfolio's return and the return of its designated benchmark over the same period.
Why active return matters
Active return measures the outcome of departing from a benchmark. It is central to evaluating active managers, benchmark-aware portfolios, and tactical decisions. The result should be considered with tracking error, since two managers can produce the same active return while taking very different amounts and concentrations of benchmark-relative risk.
How it is calculated
Single-period active return is portfolio return minus benchmark return. Returns must share dates, currency, income treatment, and preferably the same gross or net convention. Multi-period arithmetic active returns are useful for attribution, while geometric relative return measures the compounded change in portfolio wealth divided by benchmark wealth. The two are not interchangeable.
Example
A global equity portfolio returns 11% net of fees while its total-return benchmark earns 9%. Reported net active return is two percentage points. If gross portfolio return was 11.8%, gross active return was 2.8 points, and fees accounted for 0.8 points of the difference between gross and net results.
How to interpret it
Compare active return with the manager's mandate, active risk budget, and market environment. Attribution can separate sector or region allocation, security selection, currency, factors, and fees. Persistent positive active return with controlled tracking error is different from one large concentrated win. Review rolling periods to understand consistency and dependence on a particular regime.
Limitations
An inappropriate benchmark makes active return misleading. A manager can show positive active return by taking risks outside the intended universe, and net versus gross comparisons can obscure implementation. Active return says nothing about absolute losses: a portfolio can outperform while both portfolio and benchmark fall sharply. It is an outcome, not a proof of alpha.
Practical checklist
Lock the benchmark and conventions in the mandate, use synchronized valuations and total returns, and report gross and net active return where appropriate. Calculate tracking error, information ratio, and drawdown relative to the benchmark. Attribute all material sources, including currency and fees. Investigate changes in active weights and risk contribution before interpreting a short period of outperformance.
Also known as: benchmark-relative return
Sources and further reading
- GIPS Standards Handbook for Firms, Global Investment Performance Standards